Jig tank



(No Model.) '2 Sheets-Sheet 1.

. R. STULTS.

JIG TANK.

No. 434,408. Patented Aug. 12, 1890.

(No Model.) 2 SheetsSheet 2. R. STULTS.

' JIG TANK.

No. 434,408. Patented Aug. 12, 1890.

UNITED STATES PATENT OFFICE.

RICHARD STULTS, OF ORONOGO, MISSOURI, ASSIGIFOR OF ONE-HALF TO GEORGE T. OOOLEY, OF SAME PLACE.

JlG-TANK.

SPECIFICATION forming part of Letters Patent No. 434,408, dated August 12, 1890.

Application filed May 26, 1890- Serial No. 353,2 i3. (No model.)

To all whom itmay concern.-

Be it known that I, RICHARD STULTs, of Oronogo, in the county of Jasper and State of Missouri, have invented certain new and useful Improvements in J ig-Tanks, of which the following is a specification.

This invention relates to tanks which are used in the washingand separation of ores, such as are commonly called jig-tanks. Such tanks are in practice subjected to heavy hydraulic pressure, and difficulty is experienced in making them so that they will endure for any considerable length of time without rendering their cost excessive. The only tanks which have hitherto withstood the pressure are such as have been formed with heavy iron bands and with large rods connecting their walls, which render them exceedingly and unreasonably expensive; and even with tanks so made it is diific'ult' to maintain them in proper shape.

Now the present invention consists in the construction of the walls and partitions of such jig-tanks, whereby they are rendered very strong and at the same time inexpensive.

The improved construction of the tank is illustrated in the accompanying drawings, wherein- Figure 1 is a side view of a pair of tanks.

Fig. 2 is an end view thereof. Fig. 3is avertical section in a plane indicated by the lines 3 3, and Fig. 4 is a vertical sectionin a plane indicated by the lines 4. 4.

It is usual in operating jig-tanks to have a number of them arranged in a series and firmly united together, the entire series con stituting in effect a single structure. The present drawings accordingly illustrate two tanks coupled together in a single structure. Each tank is provided with a bottom A, two side walls 13 B, and two end walls 0 0, one of which is the partition between it and the adjacent tank. Each tank has also a vertical cross-partition D, extending only part way down, which divides it into an ore-compartment E and a water-compartment F. The ore-compartment E has a sieve G for its bottom, which supports the ore. The water-compartment F has an inclined bottom H, which extends beneath the sieve G, as shown. In the portion of the compartment F adjacent to the partition D works the usual operatingpiston. (Not shown.)- The compartment F has a discharge-openingI at the bottom. The ore-compartment has two discharges, one J to the exterior of the tank, and the other K to the next tank in the series. The openings I are normally closed by valves or gates. (Not shown.)

The tank as thus far described is an ordinary tank and possesses no novelty, either in arrangement or mode of operation. It is substantially identical with the tank shown in Letters Patent of the United States, No. 243,607, granted to Robert Parry, June 28, 1881, which may be referred to for fuller description of the arrangement and operation.

The present invention relates only to the construction of the side and end Walls B C and the partition D. All the other features of the tank are or may be of ordinary construction. The side walls B B are built up of longitudinal stringers a a and longitudinal filling-strips b b. The end walls 0 O are built up of lateral tie-beams c c, and lateral filling-strips d d and e e, and the partition D is built up of longitudinal tie-beams ff and longitudinal filling-strips gg.

The several stringers, tie-beams, and fillingstrips are joined together as follows: On the bottom A of the tank (which, since it is sufficiently supported by the ground on which it rests, may be made of planks in the ordi nary way) and along its outer edges are laid the bottom stringers a, which are secured in place by nails or boltsi 2'. Lateral fillingstrips (1 are then laid on the bottom A, between the stringers a, and are secured in place to the bottom by nails or bolts 2'. Lateral tie-beams c are then placed above the bottom filling-strips (Z, with their ends overlapping the ends of the stringers a. These tie-beams are secured in place by nails or bolts 7;, which pass through the tie-beams into both the stringers a and the filling-strips d. 5

Longitudinal filling-strips b are then placed in position upon the bottom stringers a, with their ends close to the end tie-beams 0. These filling-strips are in turn nailed or bolted to the stringers a beneath them. The second longitudinal stringers a a are then placed in position just above the first filling-strips b b,

with their ends overlapping the ends of the first tie-beams 0. These second stringers are nailed or bolted to both the filling-strips and the tie-beams beneath them. The second end filling-strips (Z are then placed in position above the first tie-beams c and between the second longitudinal stringers, and are nailed or bolted to the tie-beams beneath. The second tie-beams c are then placed above the second end filling-strips d, with their ends overlapping the ends of the second stringers a, and these second tie-beams are secured in place by nails or bolts passing into both the filling-strips and stringers below. The second longitudinal filling-strips b are placed above the second stringers Ct, between the second tie-beams c, and are nailed or bolted to the stringers beneath. In exactly a similar manner the entire tank is built up, (until the partition D is reached,) the stringers and tiebeams alternately overlapping each other, the spaces which would otherwise be left between them being filled with the filling-strips, and each piece as it is placed in position being nailed or bolted to the piece or pieces immediately beneath it.

\Vhen the tank is built up to the desired level of the bottom of the partition D, the longitudinal tie-beams f and filling-strips g are built in. The tic-beams f stretch across the tank, and their ends are laid upon and nailed or bolted to the end tie-beams c be neath them. They are placed in position at the same time when the stringers a at the corresponding height are put in place. The filling-strips g are placed upon the tie-beams f and are nailed or bolted thereto. \Vhen the partition is reached, thelong end filling-strips (l are discontinued, and they are replaced by the short strips c, each of which extends from a tie-beam f to one of the stringers a and is nailed or bolted to the tie-beams c beneath. The ends, sides, and partitions are thus built up until the tank is completed.

The filling-strips are of such size as to exactly fill up the spaces which would otherwise be left, so that a water-tight tank is made.

\Vhere a series of tanks are built together, the stringers a are preferably made long enough to extend the entire length,as shown in Fig. 1.

The overlapping of the tie-beams and stringers and the nailing or bolting of the same together and to the filling-strips above and below makes a tank of very great strength, rigidity, and endurance, and at the same time at little expense.

I claim as my invention- 1. A jig-tank having its sides and ends made up of stringers and tie-beams nailed or bolted together, said tie-beams and stringers overlapping each other, and having fillingstrips filling the spaces between said tie-beams and stringers, each of said filling-strips being nailed or bolted in place, substantially as set forth.

2. A jig-tank havinglongitudinal stringers a a, lateral tie-beams c, the ends of each of which overlap the stringers below and are in turn overlapped by the stringers above, and nails or bolts connecting said overlapping ends, in combination. with longitudinal filling-strips b 1), extending between said ticbeams and occupying the longitudinal spaces between adjacent stringers, said strips being nailed or bolted to the stringers both above and below, and lateral fillin -strips (l d, or tending between said stringers and occupying the lateral spaces between said tie-beams, said strips (1 (1 being nailed or bolted to the tiebeams both above and below, substantially as set forth.

3. A jig-tank comprising the following elements: longitudinal stringers a a, lateral tie-beams c, the ends of each of which overlap the stringers below and are in turn overlapped by the stringers above, nails or bolts connecting said overlapping ends, longitudinal filling'strips b 1), extending between said tie-beams and occupying the longitudinal spaces between adjacent stringers, said strips being nailed or bolted to the stringers both above and below, and lateral filling-strips d (Z, extending between said stringers and occupying the lateral spaces between said tie-beams, said strips d cl being nailed or bolted to the tie-beams both above and below, in combination with longitudinal tie-beams f f, parallel with said stringers and between them, the ends of said tie-beams ff resting upon and being nailed or bolted to said lateral ticbeams (Z (Z, filling-strips g g, extending between said tie-bcams (Z (Z and occupying the longitudinal spaces between said tic-beams ff, said strips 9 g being nailed or bolted to said tie-beams ff above and below, (said tiebeamsf f and strips g g forming a partition across the upper portion of said jig-tank,) and filling-strips c c, extending between said tiebeams f and said stringers Ct, said strips 6 occupying the short spaces between the tiebeanis c, and being nailed or bolted to said tie-beams 0 above and below, substantially as set forth.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

RICHARD STULTS.

Witnesses:

AL (JRoTeHE'rr, J AB VANING.

IIO 

